Re: '48 '49 '50 Light Bulbs
Posted by HH56 On 2012/11/5 11:05:03
The owners manual lists the 1154 for parking and directional and the 1158 for stop and tail. If you look at the candlepower rating, the respective filaments are reversed. Packard apparently wired the sockets to provide the different selection.
Spec wise they are virtually identical except for the pin locations. The 1154 is indexed with different height pins. Look at your socket and see if the slots are the same depth or different and then check the bulb to see which you need. Packards have been known to have worn slots and an incorrect bulb can be forcibly inserted.
The wrong bulb could affect turn signal flashing since the flasher is dependent on a certain filament resistance. Generally not the brake and tail light function other than brake could be dimmer and tail brighter than the correct bulb would have.
Don't remember if you mentioned the problem but if you have voltage to the brake switch and no brake lights, suspect the switch. Known failure item sometimes just from sitting. If the switch is OK, depending on your car the brake lights go thru the turn signal switch. Those have been known to act up with the connections becoming flaky because the phenolic contact support in the switch warps. IIRC, 22nd series do not but 23rd do go thru the signal switch. Need to verify that. At the steering column connection to turn signal switch if you have a round plug with 6 wires they do, If only 3 wires they do not.
Here are some partial specs from Don's Bulbhttp://www.donsbulbs.com/cgi-bin/r/t.pl/library.html
Attach file:
(24.48 KB)
(23.45 KB)
(27.91 KB)
(33.17 KB)
Spec wise they are virtually identical except for the pin locations. The 1154 is indexed with different height pins. Look at your socket and see if the slots are the same depth or different and then check the bulb to see which you need. Packards have been known to have worn slots and an incorrect bulb can be forcibly inserted.
The wrong bulb could affect turn signal flashing since the flasher is dependent on a certain filament resistance. Generally not the brake and tail light function other than brake could be dimmer and tail brighter than the correct bulb would have.
Don't remember if you mentioned the problem but if you have voltage to the brake switch and no brake lights, suspect the switch. Known failure item sometimes just from sitting. If the switch is OK, depending on your car the brake lights go thru the turn signal switch. Those have been known to act up with the connections becoming flaky because the phenolic contact support in the switch warps. IIRC, 22nd series do not but 23rd do go thru the signal switch. Need to verify that. At the steering column connection to turn signal switch if you have a round plug with 6 wires they do, If only 3 wires they do not.
Here are some partial specs from Don's Bulbhttp://www.donsbulbs.com/cgi-bin/r/t.pl/library.html
Attach file:
(24.48 KB) (23.45 KB) (27.91 KB) (33.17 KB)This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=112529